Are you talking about this one?

hehe,.. no, that's Red's avatar

I think it happened 3 or 4 years ago

I did an advance search for keywords "this is red" posted by mobius481 and got zero results. It seems like it has been deleted.

I did that too, and other variations, I don't think the search function is very effective. I'd bet, that post is alive, but buried among thousands of others.

The funniest was when @tirk stole reds avatar. Shit still makes me laugh and that was almost 10 years ago

That mf was hot. You're right. That shit was uncontrollably funny.